From 006b7f3d08334e5792d22671c7d11c405c67998f Mon Sep 17 00:00:00 2001
From: Alexandru Tiniuc <tiniuc.alexandru@gmail.com>
Date: Sat, 8 Jun 2019 18:47:39 +0100
Subject: [PATCH] adds Handlebars example

Closes #122
---
 Cargo.toml                                    |  1 +
 template_handlebars/Cargo.toml                | 10 ++++
 template_handlebars/src/README.md             |  7 +++
 template_handlebars/src/main.rs               | 59 +++++++++++++++++++
 .../static/templates/index.html               | 12 ++++
 .../static/templates/user.html                | 12 ++++
 6 files changed, 101 insertions(+)
 create mode 100644 template_handlebars/Cargo.toml
 create mode 100644 template_handlebars/src/README.md
 create mode 100644 template_handlebars/src/main.rs
 create mode 100644 template_handlebars/static/templates/index.html
 create mode 100644 template_handlebars/static/templates/user.html

diff --git a/Cargo.toml b/Cargo.toml
index 14ad4224..a35948e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,7 @@ members = [
   "template_askama",
   "template_tera",
   "template_yarte",
+  "template_handlebars",
   "tls",
   #"unix-socket",
   "web-cors/backend",
diff --git a/template_handlebars/Cargo.toml b/template_handlebars/Cargo.toml
new file mode 100644
index 00000000..11fb0c58
--- /dev/null
+++ b/template_handlebars/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "template_handlebars"
+version = "0.1.0"
+authors = ["Alexandru Tiniuc <tiniuc.alexandru@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+actix-web = "1.0"
+handlebars = "2.0.0-beta.2"
+serde_json = "1.0"
\ No newline at end of file
diff --git a/template_handlebars/src/README.md b/template_handlebars/src/README.md
new file mode 100644
index 00000000..88139535
--- /dev/null
+++ b/template_handlebars/src/README.md
@@ -0,0 +1,7 @@
+# Handlebars
+
+This is an example of how to use Actix Web with the [Handlebars templating language](https://crates.io/crates/handlebars), which is currently the most popular crate that achieves this. After starting the server with `cargo run`, you may visit the following pages:
+
+- http://localhost:8080
+- http://localhost:8080/Emma/documents
+- http://localhost:8080/Bob/passwordds
\ No newline at end of file
diff --git a/template_handlebars/src/main.rs b/template_handlebars/src/main.rs
new file mode 100644
index 00000000..e49c7ad0
--- /dev/null
+++ b/template_handlebars/src/main.rs
@@ -0,0 +1,59 @@
+#[macro_use]
+extern crate actix_web;
+
+#[macro_use]
+extern crate serde_json;
+
+use actix_web::web;
+use actix_web::{App, HttpResponse, HttpServer};
+
+use handlebars::Handlebars;
+
+use std::sync::Arc;
+
+use std::io;
+
+// Macro documentation can be found in the actix_web_codegen crate
+#[get("/")]
+fn index(hb: web::Data<Arc<Handlebars>>) -> HttpResponse {
+    let data = json!({
+        "name": "Handlebars"
+    });
+    let body = hb.render("index", &data).unwrap();
+
+    HttpResponse::Ok().body(body)
+}
+
+#[get("/{user}/{data}")]
+fn user(
+    hb: web::Data<Arc<Handlebars>>,
+    info: web::Path<(String, String)>,
+) -> HttpResponse {
+    let data = json!({
+        "user": info.0,
+        "data": info.1
+    });
+    let body = hb.render("user", &data).unwrap();
+
+    HttpResponse::Ok().body(body)
+}
+
+fn main() -> io::Result<()> {
+    // Handlebars uses a repository for the compiled templates. This object must be
+    // shared between the application threads, and is therefore passed to the
+    // Application Builder as an atomic reference-counted pointer.
+    let mut handlebars = Handlebars::new();
+    handlebars
+        .register_templates_directory(".html", "./static/templates")
+        .unwrap();
+    let handlebars_ref = web::Data::new(Arc::new(handlebars));
+
+    HttpServer::new(move || {
+        App::new()
+            .register_data(handlebars_ref.clone())
+            .service(index)
+            .service(user)
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+}
diff --git a/template_handlebars/static/templates/index.html b/template_handlebars/static/templates/index.html
new file mode 100644
index 00000000..867c114e
--- /dev/null
+++ b/template_handlebars/static/templates/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>{{name}} Example</title>
+</head>
+
+<body>
+    <h1>{{name}} example</h1>
+    <p>This is an example of how to use {{name}} with Actix-Web.</p>
+</body>
+</html>
\ No newline at end of file
diff --git a/template_handlebars/static/templates/user.html b/template_handlebars/static/templates/user.html
new file mode 100644
index 00000000..59e2f1fa
--- /dev/null
+++ b/template_handlebars/static/templates/user.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>{{user}}'s homepage</title>
+</head>
+
+<body>
+    <h1>Welcome back, {{user}}</h1>
+    <p>Here's your {{data}}.</p>
+</body>
+</html>
\ No newline at end of file